Machine for combining and winding two or more webs of flexible material



Oct. 13, 1936. R. McC. JOHNSTONE MACHINE FOR QOMBINING AND WINDING TWO OR MORE WEBS OF FLEXIBLE MATERIAL 2 Shets-Sheet 1 Filed May a, 1935 INVENTOR ATTORNEY HHH i I II n i Q Q m wh I, |||l RN 1 an mf l; %N i i I lwp ln w; aw Wm M %M: I L b m .F NJ! 1 r I .WN o I: L 1

1936. R. McC. JOHNSTONE 2,057,029

MACHINE FOR COMBINING AND WINDING TWO OR MORE WEBS OF FLEXIELE MATERIAL Filed May 8, 19255 2- Sheets-Sheet 2 ATTORNEY Patented Oct. 1-3, 1936 UNITED STATES PATENT OFFICE MACHINE FOR COMBINING AND WINDING TWO OR MORE WEBS OF FLEXIBLE BIA-- TERIAL Robert McC. Johnstone, Short Hills, N. J., assignor to Cameron Machinev Company, Brochlyn, N. Y., a corporation of New York This invention relates to a method of and means for combining and winding two or more webs of flexible material and has for its main object and feature the combining of two webs that are being wound in overlapped relation.

In the accompanying drawings the invention is shown in a concrete and preferred form in which:

Fig. l is a view in end elevation, with parts 1 broken away and in section but looking generally in the direction of arrows l-l of Fig. 2, of a machine embodying the invention;

Fig. 2 is a transverse vertical sectional view substantially on the plane of line 22 of Fig. l;

.15 and Fig. 3 is a diagrammatic view of the three overlapping webs.

In certain circumstances it is desirable to com bine two or more webs of flexible material with their edges in overlapped relation and to wind the combined product ready for use in subsequent operations. The example here given of such material, is paper and Cellophane. present instance there are two rolls of paper it? and ii and a roll of transparent Cellophane 52 which it is desired to combine with their edges in overlapped relation, the Cellophane being the center section of the combined webs. The winding machine employed may be of any conventional type, such as the well-known center wind machine. Such a machine may consist essentially of a rotatable supporting roll l3 on which rests winding shaft Ii conveniently carried by two arms 95 that are pivotally supported on shaft 56. It will be seen that, by this expedient,

the winding shaft is displaced automatically aswound material accumulates thereon in a well understood manner. Suitable means for driving the parts are provided and here take the fol- 40 lowing form: mounted on power shaft 51 is a driving pinion it that meshes with a gear 69 on supporting roll 13. At the other end of supporting roll I3 is a gear 20 that drives gear 2i mounted on shaft l6 which latter carries another gear 22 meshing with intermediate pinion 23 on arm l5 and meshing, in turn, with gear 24 on winding shaft It. Webs 25, 2B and 21 from rolls H), II and I2 are led over suitable guide rolls such as 28, 29 and 30 to supporting roll I3 and around the latterto winding shaft l4. As will be particularly plain from Fig. 3, webs 25, 26 and 21 are guided into slightly overlapped relation at their longitudinal edges and are wound on the winding shaft in this relation. In the overlapped section or zone of web 21 is a body of In the adhesive, and this may obviously be applied at any time either before web 2'8 is made into roll 12 or during the passage of the web from said roll 52 to the winding shaft. This adhesive may be of any suitable character such as glue or latex,

. but it must be responsive to the application of 3?. It will be noted that, at the point where the adhesive is applied, web 21 is outermost and the adhesive is applied on the exposed surface of said web it in the overlapping zones, and it will now be understood that when said web 21 reaches the winding shaft it will adhere to the previously wound portion of webs and 26. Bearing against the upper side of the wound material are heating elements 36 and 39, one for each overlapping zone of the webs, by the action of which the uniting of the webs is completed. The heating elements may be of any suitable construction but are preferably designed as follows: carried vby arms it are extensions it supporting, at their free ends, a shaft ll. Pivotally carried by shaft ii are supporting members 22 that extend rearwardly toward pivotal support it of arms 85, and mounted on supporting members d2 are the T-shape heating elements. The heating elements may be heated in any suitable manner, but preferably an electric current is used, binding posts 33 being utilized to receive suitable wire connections. The large dotted circle M in Fig. 2 represents the roll of wound material near the completion of the winding operation, and above it is seen in dotted lines 38a the position of the heating elements at that time. It will be observed that owing to the double pivot action around it and 4! the angular position of the heating element is changedbut slightly during the progress of the winding operation.

45 indicates a handle by-means .of which arms 15 and the rewind shaft may be lifted, and a pawl and ratchet mechanism is indicated at 46 and 41 by means of which the winding shaft may be held in elevated position.

I claim:

1. A machine of the character set forth including: a winding shaft displaceable as the wound material increases thereon; guide means to lead two webs oi! flexible material in overlapped relation to said winding shalt, one oi' said webs carrying on its overlapp ha section a body oi. adhesive responsive to heat; a heating element to engage the wound material in the zone of the body of adhesive; and supporting means for said heating element responsive to an increase in diameter of the wound material.

2. A machine of the character set forth including: a rotatable supporting roll; a winding shai't resting on said supporting roll; pivotaliy supported arms carrying the winding shaft andpermitting the latter to recede from the supporting roll in response to an increase in: diameter of the wound material on the winding shaft; a heating element, to engage the wound material, pivotaliy supported at the free end oi the arms and extending backwardly toward the pivotal support for the arms; and guide means to lead two webs in overlapped relation around the supporting ro to the winding shaft.

ROBERT MCC. JOHNSTONE. 

